The Different Types of House Extension

A new home extension is a great way for homeowners to increase living space without having to move house. 

Whether you need an extra bedroom for a growing family, an office to help with working from home or simply desire a fresh layout, an extension can provide all the additional space or functionality you are looking for. 

In this article, we’ll take a closer look at when an extension is required and the various types that are available. 

Read on to find out more…

When Is An Extension Necessary?

Deciding to extend your home is a significant change, and understanding when it’s necessary can help you ensure the investment is worthwhile.

As an alternative to moving to a larger property, some of the common reasons homeowners consider extensions include:

• Growing family needs: If you’re growing your family or are considering doing so in the future, extra bedrooms, bathrooms or larger communal spaces may be required. An extension can help you accommodate all members of the family comfortably. 
• Working from home: These days, more and more people spend at least some of the working week working remotely. A dedicated office space in your property can help enhance productivity and create a healthy work-life balance. 
• Lifestyle changes: You may want to create a new space for entertaining, such as an open-plan kitchen or larger living room.
• Increasing property value: Thoughtfully designed and expertly executed extensions can add significant value to your home, making it a worthwhile long-term investment no matter whether you’re planning to sell or not.
• Avoiding the hassle of moving: Home extensions can provide you with a way to achieve your desired space without the associated costs and stress of having to move house.  

The Different Types Of House Extensions 

There are several types of house extensions that cater for different needs and various property layouts. Here is an overview of some of the most common types:

Rear Extension 

One of the most popular extension types is a rear extension. This involves expanding your property at the back, typically into the garden or outdoor area and can also include conservatories and sunrooms. 

They create a larger, more open space that is ideal for kitchens, dining areas and living rooms, and can maximise the use of your outdoor space while still preserving the home’s facade. They offer flexibility in design and allow for a seamless connection between indoor and outdoor areas with the inclusion of features like bi-fold doors.

Planning permission is rarely required unless the property is listed or located in a conservation area. 

Side Return Extension 

A side return extension utilises the narrow alley or passage alongside a property that is commonly found in Victorian or Edwardian homes. 

They are ideal for properties that have limited rear space but still want to extend, and they can help transform narrow kitchens or dining spaces into bright, spacious areas by incorporating skylights or glass walls. Often, these extensions do not require substantial structural changes, making it a cost-effective solution. 

However, the width of the side alley may limit the extension’s size and you may also need to be mindful of potential light loss to neighbouring properties.  

Wrap Around Extension 

Wrap around extensions are created by combining side return extension and rear extensions. This is done by creating an L shape that brings together the wrap around extension. 

The side wall of the property will be built closer to your neighbours’ building and the rear wall of the property is often moved to the rear garden to complete this L shape. 

There are several benefits of this extension type and they are great at creating open-plan living areas. They also offer a blank canvas which unique design features, such as kitchen islands or dining and relaxing zones, can be created. 

It’s worth noting that this extension type often requires more significant planning and construction compared to single extensions. They can also be more expensive due to their scale and structural requirements. 

Over-structure Extension 

An over-structure extension involves building additional space over an existing structure, like a garage, single-storey extension or porch. 

Many properties in the UK also feature single storey garages,which offer great opportunities for additional space to be created. These extensions offer an efficient use of a property’s existing foundations which can help reduce construction costs. Plus, they add valuable upper-level space which is ideal for extra bedrooms, bathrooms and home offices. They can maintain outdoor space as an extension of this type doesn’t require the footprint of the property to be increased. 

An over-structure extension requires a structural assessment to ensure the existing structure is capable of supporting the additional load. The design must also integrate seamlessly with the existing home to maintain its aesthetic appeal and this may involve disruption to rooms during the construction process.      

Double Storey Extension 

Double-storey extensions add space across two floors, effectively doubling the extension’s benefits. 

This extension type helps to maximise the available space and provides room for multiple purposes such as bedrooms, bathrooms and expanded living areas. This offers better value per square metre compared to single-storey extensions such as the cost of foundations and roofing is shared across two floors rather than just one. These extensions can also enhance a property’s appeal and value. 

Usually, planning permission is almost always required due to the size and impact on neighbouring properties.

Single Storey Extension 

A single storey extension is a versatile and popular choice, offering increased living space without the complexity of adding multiple levels. 

This is suitable for a wide range of uses including kitchens, living rooms and home offices. They are easier and faster to construct compared to larger extensions and they often fall under permitted development rights which reduces planning hurdles. 

These extension types are limited to ground-level spaces, so they may not be the best choice for additional bedrooms. They can also reduce outdoor space, requiring a balance between indoor and garden areas.

Overall, choosing the right type of house extension will depend on your property’s layout, specific needs and budget so be sure to consider all the options carefully before proceeding.